Show that the polynomial x² +2x+7 has no zeroes
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Answer:
p(x)=x²+2x+7
let us do the discriminant
d=b²-4ac
=2²-4(1)(7)
=4-28
=-24
as the discriminant is in negative
the roots are imaginary
so,the given polynomial has no roots
hope the answer helps u
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Answer:
here , a=1 b=2 c=7
(b)^2-4ac=D(discriminant)= (2)^2-4(1)(7)=4-28= -24
Explanation: as we know that when D is less than 0. then the quadratic equation have no real root or zero. therefore as the given equation shows the same case therefore it have no zero or root.
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